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[mawr-tal-i-tee] /mɔrˈtæl ɪ ti/
noun, plural mortalities.
the state or condition of being subject to death; mortal character, nature, or existence.
the relative frequency of deaths in a specific population; death rate.
mortal beings collectively; humanity.
death or destruction on a large scale, as from war, plague, or famine.
Obsolete. death.
Origin of mortality
1300-50; Middle English mortalite < Middle French < Latin mortālitās. See mortal, -ity Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for mortality
Contemporary Examples
Historical Examples
  • Pass on, with your burden of mortality, And lay it in the tomb with jolly hearts.

    Main Street Nathaniel Hawthorne
  • Our provisions were very bad, and the mortality among us was great.

    Ned Myers James Fenimore Cooper
  • How altered and defaced by the putrifying touch of mortality!

  • The mortality among the officers and men has been in proportion.

  • The mortality might have been higher than it was but for Peter Blood.

    Captain Blood Rafael Sabatini
British Dictionary definitions for mortality


noun (pl) -ties
the condition of being mortal
great loss of life, as in war or disaster
the number of deaths in a given period
mankind; humanity
an obsolete word for death
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for mortality

mid-14c., "condition of being mortal," from Old French mortalite "massacre, slaughter; fatal illness; poverty; destruction" (12c.), from Latin mortalitem (nominative mortalitas) "state of being mortal; subjection to death," from mortalis (see mortal (adj.)). Meaning "widespread death" is from c.1400; meaning "number of deaths from some cause or in a given period" is from 1640s.

Online Etymology Dictionary, © 2010 Douglas Harper
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mortality in Medicine

mortality mor·tal·i·ty (môr-tāl'ĭ-tē)

  1. The quality or condition of being mortal.

  2. Death rate.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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